DNA Technology

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Across
  1. 2. A development in microorganisms of mechanisms which prevent antibiotics from killing them
  2. 4. Catalyses the production of DNA from mRNA
  3. 6. A nucleotide sequence which is recognised by a restriction endonuclease and to which it attaches
  4. 9. This process uses another antibiotic-resistant gene in the plasmid
  5. 11. A section of DNA which is used to indicate the location of a gene or another section of DNA
  6. 12. Joins two sticky ends together
Down
  1. 1. An exposed portion of DNA able to rejoin with DNA which has the complimentary bases
  2. 3. There are many different types which each cut the DNA at a specific sequence of bases
  3. 5. Joins a cut off fragment of DNA into a carrying unit e.g. a plasmid
  4. 7. An enzyme which joins together nucleotides
  5. 8. If a restriction endonuclease cuts between two opposite base pairs, leaving two straight edges
  6. 10. Circular lengths of DNA, found in bacteria but are separate to the to the bacteria DNA